* {
    padding: 0;
    margin: 0;
    list-style: none;
    box-sizing: border-box;
}

.container {
    width: 700px;
    height: 400px;
    margin: 100px auto;
    position: relative;
    outline: 5px solid green;
    font-size: 0;
}

.warps {
    /* width: 600%; */
    position: absolute;
    left: 0;
    height: 400px;
    background-color: aqua;
}


.warps img {
    width: 700px;
    height: 400px;
    object-fit: cover;
}

.btn {
    position: absolute;
    top: 0;
    width: 50px;
    height: 100%;
    text-align: center;
    line-height: 400px;
    font-size: 35px;
    background-color: rgba(0, 0, 0, .3);
    color: #fff;
    opacity: 0;
    cursor: pointer;
}

.rightButton:hover,
.leftButton:hover {
    opacity: 1;
}

.rightButton {
    right: 0;
}

.dots {
    position: absolute;
    height: 20px;
    /* width: 200px; */
    bottom: 10px;
    left: 50%;
    transform: translate(-50%);
    display: flex;
    justify-content: space-around;
}

.dots li {

    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 3px solid #717070;
    background-color: rgb(0, 0, 0);
    margin: 0 5px;
    cursor: pointer;
}

.dots .active {
    border: 3px solid #898989;
    background-color: #fff;
}